1、BRITISH STANDARD AEROSPACE SERIES BS EN 3959:ZOOl Aerospace series - Cobalt base alloy (CoCriSNil7Si8W4) - Filler metal for brazing C O-B4 1 60 1 -Powder or paste The European Standard EN 3959:2001 has the status of a British Standard ICC 49.025.15 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITT
2、ED BY COPYRIGHT LAW BS EN 3959:ZOOl Amd. No. National foreword Date Comments This British Standard is the official English language version of EN 39592001. The UK participation in its preparation was entrusted to Technical Committee ACE/61, Inspection and testing requirements for aerospace metallic
3、materials, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate
4、 them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the secti
5、on entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.
6、Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 September 2001 S
7、ummary Of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication O BSI 07-2001 ISBN
8、O 580 3725 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3959 June 2001 ICs 49.025.1 5 English version Aerospace series - Cobalt base alloy CO-B41601 (CoCrl9Ni17S8W4) - Filler metal for brazing - Powder or paste Srie arospatiale - Alliage base cobalt CO-B41601 (CoCrl9Nil7Si8W4) - Mtal dappo
9、rt de brasage - Poudre ou pte Luft- und Raumfahrt - Kobaltbasislegierung CO-B41601 (CoCrl9Ni17Si8W4) - Hartlot in Form von Pulver oder Paste This European Standard was approved by CEN on 19 April 2001. CEN members are bound to comply with the CENEENELEC Internal Regulations which stipulate the condi
10、tions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three of
11、ficial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria,
12、Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centr
13、e: rue de Stassart, 36 6-1050 Brussels 0 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3959:2001 E Page 2 EN 3959:2001 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers
14、(AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given th
15、e status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2001, and conflicting national standards shall be withdrawn at the latest by December 2001. According to the CENKENELEC Internal Regulations, the national standards organizations
16、of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 3 EN 3959:2001 O Introduc
17、tion This standard is part of the series of EN metallic material standards for aerospace applications. The general organisation of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-6. 1 Scope This standard specifies the requirements relating to: Cobalt b
18、ase alloy CO-B41601 (CoCrl9Nil7Si8W4) Filler metal for brazing Powder or paste for aerospace applications. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in th
19、e text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to a
20、pplies. EN 2043 Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings) 1) Aerospace series - Metallic materials - Filler metal for brazing - Technical specification 1) EN 3875 EN 4258 Aerospace series - Metallic material
21、s - General organization of standardization - Links between types of EN standards and their use EN 4500-6 Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 6: Specific rules for filler metals for brazing 1) O 1) Published as AECMA Prestandard at
22、 the date of publication of this standard Page 4 EN 3959:2001 4.3 14.1 I Form I I Paste I Powder Limit dimension(s) mm - - 14.2 1 Method of production 5 I Water or inert gas atomised and sieved and mixed with a binder I Water or inert gas atomised and sieved I _ Technical specification EN 3875 6.1 6
23、.2 Delivery condition As manufactured As manufactured Heat treatment - Delivery condition code U U - 7 Use condition Heat treatment - - Delivery condition or mixed with a binder Delivery condition Characteristics 8.1 8.2 8.3 9 Test sample) - Test piece) - Heat treatment - Dimensions concerned mm - o
24、 I 11 I Direction of test oiece I - I I Thickness of cladding on yo - each face I I 12 Temperature I eloc1 - O 2 - 13 Proof stress Rp0.2 MPa - 14 T Strength R, MPa - - - 15 Elongation A Yo - - 16 Reduction of area 2 % - 17 Hardness - 18 Shear strength Rc MPa - 19 Bending k- - 20 Impact strength - 21
25、 Temperature e oc - 22 Time h - 23 Stress Ga MPa - 24 Elongation a % - - - -c - 25 Rupture stress CTR MPa - O a a - Powder a 0 Paste kternal defects - -hermal analysis Differential thermal analysis) See EN 3875 - See EN 3875 Yeitability Fusion test) 7 - Aetallic alloy content Liquidus: 1 150 “C Soli
26、dus: 1 120 “C See EN 3875 3atch uniformity Material verification) - 7 article size Sieve analysis) See EN 3875 Powder Paste - 84 % I metallic alloy content I 90 %O Warking inspection - - Xnensional inspection otes See EN 3875 See EN 3875 rypical use - Joining cobalt alloys. - -I See EN 3875 See EN 3
27、875 *) p.p.m. a The chemical composition refers to the metallic alloy content. Page 6 EN 3959:2001 roduct qualification See EN 2043 halification programme to be agreed between manufacturer and purchaser. BS EN 3959:2001 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution 3SI
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